Car-truck.



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CAR TRUCK.

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J. C. BARBER.

CAR TRUCK.

(Aiaplication led Oct. 31, 1901.)

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Patented sept. 9, :902. c. BARBER.

CAR TRUCK., (Application filed 0011.31, 1901.)

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STATES PATENT OFFICE.

JOHN C. BARBER, OF ST. PAUL, MINNESOTA, ASSIGNOR TO STANDARD CAR TRUCK COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

CAR-TRUCK.

SPECIFICATION forming part of Letters Patent No. 708,855, dated September 9, 1902.

Application filed October 31,1901. Serial No. 80,612. (No model.)

'o LU whom, it' Hetty concern:

Be it known that I, JOHN O. BARBEma citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful and has for its object toimprove the same in the several particulars hereinafter noted.

Theinvention consists of the novel devices r 5 and combinations of devices hereinafter described, and defined in the claims.

In accordance with my present invention I mount the truck-frame for lateral movements with respect to all of the truck-wheels. In

zo order to give the truck this lateral movement, it is necessary that it be free for movement with respect to all of the truck-wheels. ln the supports between the truck-wheels or the axles thereof and the truck-frame lateral-moz 5 tion devices are provided, which tend to keep the truck-frame in an intermediate position. Cooperating concave roller-seats and interposed rollers best serve this purpose. When the cooperating concave roller-seats and ingo terposed rollers are employed,` it becomes very important that one member of each pair of coperating seats be secured for transverse movements with the truck-frame and the other with the truck-wheels. This arrange- 3 5 ment is also necessary whenever springs are applied to the said bearing members in order to prevent canting of the springs and also to insure the returning of the truck-frame to an intermediate normalposition. With the lat- 4o orally-movable truck-frame the lower or truck center-bearing plate may be rigidly secured to the truck-transoms or transverse member or members which rigidly connect the sides of the truck-frame. This males it possible to dispense with the ordinary truckbolster and also makes'itjos'sible to Yconnect the frarne-formlateral movements with the body of the car. I

Other minor novel features of construction will appear in the following detail descrip- Vtion and be defined in the claims.

A truck embodying the several features of myinvention is illustrated in the accompanyving drawings, wherein like characters indicate like parts throughout the several views.

Figure 1 is a plan View of the truck, some parts being broken away. Fig. 2 is a View, partly in side elevation and partly in section, on the line x2 .ft2 of Fig. 1. Fig. 3 is a transverse vertical section on the irregular line 003 co3 of Fig. 1. Fig. 4 is a detail in end elevation, with some parts broken away, showing the end of one of the trussed sides of the truck-frame. Fig. 5 is a detail in horizontal section on the line $5005 of Fig. 2, and Fig. 6 is a horizontal section on the line co6 co6 of Fig. 2.

The truck-wheels l are, as is usual, secured on axles 2, and the ends of the axles are journaled in ordinary bearing-brasses 3a, located within the journal or oil boxes 3. For purposes which will presently appear the journal-boxes 3v are formed on their tops with concave roller-seats 4 and on their sides with stop-anges 5.

The sides of the truck-frame are made up each of a top arch-baro, lower bar or tiestrap 7, trussed bar S, and pedestals 9. The bars 6 and 7 are preferably of channel form. The outer pedestals 9 are preferably formed with detachable legs or sections 9, which feature, however, is shown and claimed in a companion application led of even date herewith, entitled Car-trucks. The pedestals 9 are shown `as connected in pairs, by integrally-form ed channel-shaped sections 9", which at their intermediate portions have depending cylindrical thimbles l0 for an ivmportant purpose, which will presently appear. The pedestals 9 are spaced apart, so as to receive between them the journal-boxes 3, and they are provided on their inner faces with vertically-extended guideways or channels ll, in which the stop-flanges of said boxes work with freedom for a considerable movement transversely of the truck. Wearingstrips l2 are shown as placed between the stop-lugs 5 and the bottoms of the channels or guideways ll. At their intermediate portions the sides of the truck-frame are rigidly tied together b v a pair of heavy transoms 13, preferably in the form of I-beams, the ends of which are rigidly cogiectedbywrivetsVor otherwise below the top arch-bar 6 and above the lower bar 7 and truss-bar 8, and thus serve as struts to the said side frames. As shown, tie-plates 14 are riveted to the tops and bottoms of the transoms 13 and extend from end to end thereof. Also, as shown, the upper and lower bars of the side frames are further connected by outer and inner metal panels 15 and 16, respectively. Rollers 17 are placed on the concave seats 4 of the journal -boXes 3. Above each pair of rollers 17 is placed a combined roller-cap and spring-seat 18, having concave roller-seats 19 and a vertically-projecting thimble or hub 20,that telescopes into the depending thim ble 10, previously noted. A heavy truck-spring 21 is placed around each pair of telescoping thimbles 10 20, with its lower end resting on the said combined cap and spring-seat 18 and with its upper end pressing against the bottom of the connecting-channel 9b, which channels are thus made to serve as the spring-caps. The combined roller-cap and spring-base is provided at its sides with projecting guidelugs 22, which work in the upper portions of the pedestal channels 11. Thus the rollercaps 18 are permitted to rise and fall as the springs 10 yield, but are caused to travel laterally with the truck-frame, so that the said springs are kept in true vertical position throughout the lateral movements of the truck-frame.

The truck center plate 23 is rigidly secured directly on top of the transom afforded by the I-beams 13. Secured between said beams 13, below the center bearing 23, is a bridgecasting or so-called diaphragm 24.

25 indicates a portion of the body-bolster of the car which has a center bearing-plate 26 for coperation with the bearing-plate 23.

l/Vith the construction above described it is evident that the entire truck-frame, as well as the body of the car, is at all times free to move transversely of the car and with respect to the truck-wheels. Under such lateral movements the journalboxes 3 of course move with the wheels and carry their rollerseats 4 out of line with the seats 19 and the spring-caps 18. The pressure of the load acting on the seats 4 and 19 and rollers 17 of course tend to restore the normal relations with the partsthat is, bring them back into the intermediate positions indicated in Figs. 3 and 6.

From the foregoing descriptions and statements made it will be understood that my invention is capable of a very large range of modification. In fact, I believe that I am the rst to provide a truck with lateral-motion devices, which permit the truck-frame to move laterally with respect to all of the truckwheels, but normally maintain said frame in an intermediate position. Hence I desire to claim this feature in the broadest possible terms.

As a matter of convenience in expression the truck-frame has been described as movable laterally with respect to all of the truckwheels; but it will of course be understood that it would be equally true to say that all of the wheels are movable laterally with respect to the truck-frame.

What I claim, and desire to secure by Letters Patent of the United States, is as follows:

1. In a car-truck, the combination with journal-boxes mounted in the truck-frame with freedom for both vertical and lateral movement-s with respect thereto, of springs interposed between said journal-boxes and the truck-frame, and coperating lateral-motion devices afforded by rollers and coperating concave roller-seats, applied between said journal-boxes and the truck-frame, whereby said journal-boxes are yieldingly held for independent vertical and lateral movements.

2. In a car-truck, the combination with the truck-wheels and their axles, of journal-boxes in which said axles are journaled, a truckframe having pedestals between which said journalboxes work with freedom for limited movements transversely ofthe truck, concave roller-seats carried on the tops of `said journal-boxes, rollers on said concave seats and roller-caps held against lateral motion with respect to the said pedestals and having concave roller-seats engaging the tops of said rollers, substantially as described.

3. In a car-truck, the combination with the truck-wheels and their axles,of journal-boxes in which'said axles are journaled, a truckframe having pedestals between which said journal-boxes work with a limited movement transversely of the truck, concave roller-seats carried on the tops of said journal-boxes, rollers on said concave seats, roller-caps freeV for vertical but held against lateral movements with respect to said pedestals and having concave roller-seats engaging the tops of said rollers, and springs compressed between said roller-caps and superposed portions of the truck side frames, substantially as described.

4. In a car-truck the combination with the truck-wheels and their axles, of journal-boxes in which said axles are jonrnaled, a truck having pedestals between which said journalboxes work with a limited movement transversely of the truck, concave roller-seats carried on the tops of said journal-boxes, rollers on said concave seats, roller-caps connected to the truck side frames by verticallydisposed telescoping thimbles or guides and springs surrounding said thimbles and compressed between said roller-caps and superposed portions of the truck side frames, substantially as described.

5. The combination with a car-truck and axle-box, of an interposed supporting-spring, a bearing cup or head supporting the lower end of said spring, a track member on the upper surface of the axle-box, and ak set of rollers interposed between said bearing-cup and the track Vmember and adapted to afford independent lateral movement to the axleboX, substantially as described.

6. The combination with a car-truck and an axle-box, of aninterposed supporting-spring, a bearing cup or head supporting the lower en d of the spring, a track member `on the upper surface of the axle-box, and a set of rollers interposed between said bearing-cup and the track member and adapted to afford independent lateral movements to the axlebox, the opposed faces of the bearing-cup and the track member being formed with inclined recesses forming` self-centering tracks for the rollers and individual to the same, substantially as described.

7. In a car-truck the combination with the pedestal or side frame, a supporting-spring, a support for the lower end of said spring, means for holding said support against lateral movement, an axle-box having independent lateral movement with relation to said spring-support, a track member on the upper port and said track member, substantially as set forth. y

8. In a car-truck, the combination with pedestal or side frame, a supporting-spring, a support for the lower end of said spring, means for holding said support against lateral movement thue same consisting of lugs or projections engaging vertical sides of the pedestal or frame, and an axle-box having independent lateral movement with relation to said spring-support, substantially as set forth.

9. In a car-truck, the combination of a pedestal or side frame,va supporting-spring, a support for the lower end of said spring, means for holding said support against lateral movement the same consisting of lugs or projections engaging the vertical sides of the pedestalfframe, and axle-box having independent lateral movement with relation to 4said spring-support, a track member on the upper surface of the axle-box and a bearing roller or rollers interposed between the springsupport and said track member, substantially as described. v

In testimony whereof I affix my signature in presence of two witnesses.

JOHN 0. BARBER.

Witnesses:

ELIZABETH `KELIHER, F. D. MERCHANT. 

